Example nested xtask crate structure results in unlinked-file rust-analyzer error

[nickgerace]

Description

Hi! I'm unsure if this is a rust-analyzer or cargo-xtask issue, but I receive the following rust-analyzer message for my repository layout in the xtask's main.rs file:

file not included in module tree rust-analyzer (unlinked-file)

My repository layout reflects the hello-world example. I can display more files if needed, but these are the ones I believe to be relevant:

Cargo.toml  <-- standard single-crate-per-repo Cargo.toml file structure
.cargo/
  config  <-- contains xtask alias
src/
  main.rs 
xtask/
  src/
    main.rs  <-- error occurs here

Findings

I am curiuous if the xtask pattern requires the use of cargo workspaces. The example in this repository does not use cargo workspaces, so I am curious if I am missing something, or if the example in the repository should change.

The good news is that the xtask does work. Perhaps, rust-analyzer is the issue and I should file an issue there. At this point, I am unsure, but thought I would start here since I see xtask used in workspaces more often than as a nested crate.

Thanks in advance for any and all help here.

Environment

• rust-analyzer 0.2.654 (VS Code extension)
• macOS 11.4 amd64
• VS Code1.57.1
• cargo 1.53.0 (4369396ce 2021-04-27)
• rustc 1.53.0 (53cb7b09b 2021-06-17)